Well, like MAN, either TK will have to expand ops, maybe put an A330 on the 4 days PIA serve BHX, or like you say, EK add a frequency. That capacity has got to go somewhere!
As ive said in MAN thread, if Airblue go for the OA A340's, maybe they could open BHX say 3-4 weekly?
When government services go tits up, its the private sector who step in, so this is where Airblue could come into their own.